Sandisk Extreme Plus SDXC 64GB C10 Flash Memory Card (SDSDXSF-064G-ANCIN) Class 10 & Uhs Class 3 (u3) For Capturing 4k Ultra Hd Video Extreme Continuous Shot-to-shot Performance Read Speed Up To 90mbps Write Speed Up To 60mbps Sdhc (16 & 32gb) & Sdxc (64gb) Form Factor